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Bosiack Ann P - - 2010
OBJECTIVE: To compare blood pressure measurements obtained via ultrasonic Doppler flow monitor (DOP) and 2 oscillometric noninvasive blood pressure monitors (CAR and PAS) to invasive blood pressure (IBP) in hospitalized, conscious dogs with a range of blood pressures. DESIGN: Prospective clinical study. SETTING: University teaching hospital. ANIMALS: Eleven client-owned dogs ...
Hamel Jean-François - - 2010
OBJECTIVE: Despite its screening interest, the ankle-brachial pressure index (ABPI) remains uncommon in general practice, because it needs training and specific devices as Doppler. Easier methods such as the use of automated oscillometric devices may facilitate the peripheral arterial diseases (PADs) screening. We wanted to assess the reliability of the ...
van Ramshorst Gabriëlle H - - 2011
Sustained increased intra-abdominal pressure (IAP) has negative effects. Noninvasive IAP measurement could be beneficial to improve monitoring of patients at risk and in whom IAP measurements might be unreliable. We assessed the relation between IAP and abdominal wall tension (AWT) in vitro and in vivo. The abdomens of 14 corpses ...
Ward Kevin R - - 2010
Knowledge of central venous pressure (CVP) is considered valuable in the assessment and treatment of various states of critical illness and injury. We tested a noninvasive means of determining CVP (NICVP) by monitoring upper arm blood flow changes in response to externally applied circumferential pressure to the upper arm veins. ...
Hass Chris J - - 2010
BACKGROUND: Chronic ankle instability alters spinal level sensorimotor function and is hypothesized to alter supraspinal motor control mechanisms. Gait initiation is a functional task modulated by supraspinal pathways, but the effect of chronic ankle instability, a peripheral musculoskeletal impairment, on gait initiation and thus supraspinal motor control mechanisms remains unknown. ...
Lamb Tyler S - - 2010
OBJECTIVE: To compare blood pressure readings obtained with two commonly used oscillometric monitors: Omron HEM 711 AC (OM) and Welch-Allyn 52000 series NIBP/oximeter (WA) with mercury sphygmomanometers (Merc) in subjects with atrial fibrillation. METHODS: We recruited 51 hemodynamically stable subjects with atrial fibrillation. Fifty four subjects in normal sinus rhythm ...
Hosseini S Mehran - - 2010
BACKGROUND: Pulse pressure (PP) is a marker of arterial stiffness. Ageing of the arterial system is accompanied by atherosclerosis of coronary arteries and atherosclerosis of popliteal artery. However, severe impairment of the brachial artery is rare. This study investigates whether there is any significant inter-limb (brachial/ankle) PP difference. METHODS: Blood ...
Chessex Philippe - - 2010
OBJECTIVE: To determine whether photo-protecting total parenteral nutrition in preterm infants influences arterial blood pressure differently according to gender. Blood pressure is influenced by complex mechanisms of vasomodulation. Oxidants are mediators and effectors in such reactions. Shielding total parenteral nutrition from light contributes to decrease the generation of peroxides. Girls ...
Dainton C J - - 2010
A 21-year-old man presented with an uncommon asymptomatic case of right-sided congenital subclavian steal. On physical examination, his blood pressure was 115/80 mmHg in the left arm, but could not be measured in the right arm. Magnetic resonance angiography demonstrated that the origin of the right subclavian artery was atretic, ...
Jagomägi K - - 2010
The Vasotrac monitor provides non-invasive near-continuous blood pressure monitoring and is designed to be an alternative to direct intra-arterial blood pressure (BP) measurement. As compared to radial artery invasive BP and upper arm non-invasive BP, Vasotrac readings have been found to have a good agreement with them. However, discrepancies have ...
Miura Hajime - - 2010
The purpose of this study was to evaluate arterial function by near infrared spectroscopy (NIRS). 16 elderly subjects were studied: 8 were arteriosclerosis obliterans patients (ASO), and 8 were healthy elderly (non-ASO). A cuff around the thigh was inflated to a pressure of 20% above their ankle systolic blood pressure ...
Shafique Muhammad M City University London School of Engineering and Mathematical Sciences, UK. - - 2010
Photoplethysmography (PPG) is a technique widely used to monitor volumetric blood changes induced by cardiac pulsations. Pulse oximetry uses the technique of PPG to estimate arterial oxygen saturation values(S(p)O(2)). In poorly perfused tissues, S(p)O(2) readings may be compromised due to the poor quality of the PPG signals. We have developed ...
Kim Jong Pal JP Samsung Advanced Institute of Technology, NongSeo-dong, GiHeung-Gu, YongIn-Si, Korea. - - 2010
In developing a wrist blood pressure monitor of high and reliable accuracy, the effect of different pressurization methods on the accuracy of blood pressure measurement at the wrist using oscillometry is investigated in this paper. 30 volunteers are recruited and blood pressure readings are taken with three different methods of ...
Rolian Campbell - - 2009
ABSTRACT Human hands and feet have longer, more robust first digits, and shorter lateral digits compared to African apes. These similarities are often assumed to be independently-evolved adaptations for manipulative activities and bipedalism, respectively. However, hands and feet are serially homologous structures that share virtually identical developmental blueprints, raising the ...
Allison Matthew A - - 2010
The authors aimed to determine differences in the prevalence of peripheral arterial disease (PAD) and its associations with cardiovascular disease (CVD) risk factors, using different methods of calculating the ankle-brachial index (ABI). Using measurements taken in the bilateral brachial, dorsalis pedis, and posterior tibial arteries, the authors calculated ABI in ...
Muecke Sandy - - 2010
OBJECTIVES: For some time, the inaccuracies of non-invasive blood pressure measurement in critically ill patients have been recognised. Measurement difficulties can occur even in optimal conditions, but in prehospital transportation vehicles, problems are exacerbated. Intra-arterial pressures must be used as the reference against which to compare the performance of non-invasive ...
Jazbinsek Vojko - - 2010
Most non-invasive blood pressure measurements are based on either the auscultatory or the oscillometric technique. In this study, we performed an extensive analysis of the signals, i.e., responses of a microphone implanted in the cuff and pressure changes in the cuff, which can be recorded during such measurements. We applied ...
Reich-Schupke Stefanie - - 2009
BACKGROUND: Medical compression stockings (MCSs) can be divided into different classes based on ankle pressure. OBJECTIVE: To determine whether, in clinical practice, off-the-shelf round knitted moderate MCSs exert the intended ankle pressure (23-32 mmHg, recommended by the European Committee for Standardization), whether repeated donning and doffing influences pressure, and whether ...
Munsterman Amelia S - - 2009
OBJECTIVES: To develop a direct method for measuring intra-abdominal pressures in the standing horse, identify a reference interval for direct intra-abdominal pressures, compare these pressures to indirect intra-abdominal pressures measured from the bladder, and determine the optimal bladder infusion volume for indirect pressure measurement. DESIGN: Prospective, experimental study. SETTING: A ...
Kawamoto Chiaki - - 2010
PURPOSE: To identify the most effective procedures to avoid increased intrahepatic pressure during radiofrequency ablation, we evaluated different ablation methods. METHODS: Laparotomy was performed in 19 pigs. Intrahepatic pressure was monitored using an invasive blood pressure monitor. Radiofrequency ablation was performed as follows: single-step standard ablation; single-step at 30 W; ...
Bonso Elisa - - 2009
The objective of this study was to determine the accuracy of the Microlife BP A100 blood pressure measuring device tested according to the requirements of the International Protocol of the European Society of Hypertension. The BP A100 model is designed to provide accurate blood pressure measurements over a wide range ...
Kornø M - - 2009
OBJECTIVES: To evaluate the determination of ankle-brachial indices (ABIs) using a simple automated ankle pressure measurement device in comparison with the Doppler technique. DESIGN: ABI was measured in 61 patients (122 legs) admitted to the department of vascular surgery, Rigshospitalet. ABI was calculated twice using both the methods on both ...
Richart Tom - - 2009
We validated automated oscillometric measurement of the ankle-to-arm ratio of systolic blood pressure (ankle-brachial blood pressure index, ABI) against the manual approach, which requires trained observers and has an intra-observer variability of approximately 10%. A single observer measured ABI in 105 subjects (age range, 20-80 years; women, 51.9%). The manual ...
Benigni J P - - 2009
The use of a special foam pad for thighs under compression allows an increase in the interface pressure. The interface pressures obtained under one and two compression stockings (23 mmHg at the ankle) in the supine position are 10.7+/-2 mmHg and 19.1 mm+/-2.9 mmHg respectively without interposing a pad and ...
Khandanpour Nader - - 2009
OBJECTIVE: To assess the accuracy of ankle brachial pressure index (ABPI) assessed by photoplethysmography (PPG) compared with continuous wave Doppler (CW-Doppler). METHODS: Ankle brachial pressure index was measured in a standard manner using both PPG and Doppler probes. For PPG-ABPI, a PPG probe was placed on the index finger and ...
Padilla Jaume - - 2009
Unlike quadrupeds, humans exhibit a larger hydrostatic pressure in the lower limbs compared with the upper limbs during a major part of the day. It is plausible that repeated episodes of elevated pressure in the legs may negatively impact the endothelium, hence contributing to the greater predisposition of atherosclerosis in ...
Troy R - - 2009
OBJECTIVE: The objective of this study was to evaluate the difference between noninvasive and central arterial blood pressure measurements in extremely low-birth-weight (ELBW) infants. STUDY DESIGN: We conducted a retrospective cohort study of infants with birth weight <or=1000 g and who were admitted to a single center in 2005. Paired ...
Clark Christopher E - - 2009
BACKGROUND: Previous studies have identified a substantial prevalence of a blood pressure difference between arms in various populations, but not patients with type 2 diabetes. Recognition of such a difference would be important as a potential cause of underestimation of blood pressure. AIM: To measure prevalence of an inter-arm blood ...
Benchimol Daniel - - 2009
Previously, we validated determination of ankle-brachial index using an automatic blood pressure device. To test the feasibility and accuracy of the automatic method in assessing pathological ankle-brachial indexes in routine preventive examinations. Two physicians enrolled 354 subjects (74% men) randomly for automatic ankle-brachial index measurements using an OMRON HM 722 ...
Vierron Emilie - - 2009
The ankle-brachial index (ABI) is a simple and noninvasive tool used to detect peripheral arterial disease (PAD). We aimed to assess, in a French multicenter cohort, the center effect associated with arterial pressure (AP) and ABI measurements using the reference method and using a semiautomatic device. This study included baseline ...
Mireles Samuel A - - 2009
In anesthesia and critical care, invasive arterial blood pressure monitoring is the gold standard against which other methods of monitoring are compared. In this assessment of the Philips MP90 monitor, the objective was to determine whether or not oscillometric measurements were within the accuracy standards set by the Association for ...
Zheng Dingchang - - 2009
Arterial wall function is associated with different physiological and clinical factors. Changes in arterial pressure cause major changes in the arterial wall. This study presents a simple non-invasive method to quantify arterial volume distensibility changes with different arterial pressures. The electrocardiogram, finger and ear photoplethysmogram were recorded from 15 subjects ...
Roeder Rebecca A - - 2009
PURPOSE: A preliminary study of a new optical oscillometric method to noninvasively measure systolic, mean, and diastolic blood pressures, in addition to heart and respiratory rates in very small extremities, is described. It employs transillumination of an extremity and measures the optical oscillation amplitude during cuff deflation from suprasystolic to ...
Lynch John E - - 2009
Compartment syndromes, conditions of elevated intramuscular pressure (IMP) resulting from trauma or chronic overuse, frequently require invasive IMP monitoring for accurate diagnosis. Our objective was to test a noninvasive ultrasound technique for estimating IMP based on fascial displacement waveforms from arterial blood pressure pulses. IMP was increased in the legs ...
Santarpia A - - 2009
In this paper we examined the influence of repetition of weight-related sentences on the involuntary pressure forces of the forearms, when in a relaxed state. These forces were involuntary oscillations, exerted by muscle movements of the breathing-cycle and muscle movements of the arm on force sensors. We constructed a linguistic ...
Wang Yuqi - - 2009
The auscultatory method is used as the reference standard in all prevalent protocols for validation of noninvasive blood pressure measuring devices, and a validation study is essentially based on the comparison between the device and observer measurements. Thus, the objectivity and accuracy of observer measurements are crucial to the validation ...
Gupta Puneet - - 2009
In addition to its ease of use and degree of independence from the subjectivity inherent in measurements made with the mercury sphygmomanometer (HgS), automated blood pressure measurement instruments (ABPMI) obviate the use of mercury-containing instrumentation and the attendant environmental issues. Thus, they have been widely used in healthcare facilities worldwide. ...
Parker Emily - - 2009
For at least 25 years, hypertension guidelines have suggested measuring blood pressure in both arms, but GPs' acceptance of this is low. Current and past versions of major guidelines were identified to review and assess the degree to which they provided justification, evidence, and a description of dual-arm measurement techniques. ...
Bosman, Ilka
This study was conducted to compare the performance of an oscillometric sphygmomanometer (PetMAP) and a high definition oscillometric monitor (MD Pro) with direct arterial pressure in ferrets under general anesthesia. Fourteen ferrets were anesthetized with propofol resulting in low blood pressures (<100 mmHg). Norepinephrine was then used to increase the ...
van der Steeg Herjan - - 2009
OBJECTIVE: To evaluate the efficacy of the urine column (UC) measurement compared to the intra-vesicular pressure (IVP) measurement as an estimation of intra-abdominal pressure (IAP) in patients with IAP up to 30 mmHg. METHODS: Fifteen patients undergoing a laparoscopic cholecystectomy were studied. All patients were catheterized. IVP measurements were performed ...
Daugherty Alan - - 2009
The CODA 8-Channel High Throughput Non-Invasive Blood Pressure system measures the blood pressure in up to 8 mice or rats simultaneously. The CODA tail-cuff system uses Volume Pressure Recording (VPR) to measure the blood pressure by determining the tail blood volume. A specially designed differential pressure transducer and an occlusion ...
Kawanishi Jun - - 2009
PURPOSE: To investigate the reliability and limitations of a new radioisotope method using (99m)Tc-diethylenetriamine-pentaacetic acid human serum albumin (Tc-99m-DTPA-HSA) and to evaluate the diagnostic ability of isotope infusion for assessing hemodynamic changes in the foot before and after treatment. METHODS: Hemodynamic changes before and after treatment were assessed in 21 ...
Sugimoto Ikuo - - 2009
PURPOSE: Understanding the hemodynamics of critical limb ischemia caused by chronic peripheral arterial occlusive disease is important to evaluate its severity and the efficacy of treatment. We investigated the usefulness of transcutaneous carbon dioxide tension (tcPCO(2)) measurement for evaluating ischemic limbs, in conjunction with the measurement of ankle pressure (AP), ...
Nault Patrice - - 2009
OBJECTIVE: This study investigated the effects of a high-sympathetic stimulus environment (high-altitude hypoxia) on limb-specific systolic blood pressure (sBP) and ankle-brachial index (ABI) in normal volunteers. We hypothesized that currently accepted normal values for ABI may in fact not reflect an actual normal vascular state in all patients. METHODS: Twenty ...
Nitzan Meir - - 2009
Automatic measurement of arterial blood pressure is important, but the available commercial automatic blood pressure meters, mostly based on oscillometry, are of low accuracy. In this study, we present a cuff-based technique for automatic measurement of systolic blood pressure, based on photoplethysmographic signals measured simultaneously in fingers of both hands. ...
Kim Jong Pal JP Samsung Advanced Institute of Technology, Korea. - - 2009
We compared the volume-oscillometric responses of the airbag pressure sensor and the contact force sensor across and along the radial artery on the wrist during partial pressurization by an airbag. Because of the anatomic structure and non-uniform pressurization pressure distribution, elongated and shifted oscillometric pressure waveform envelope variations are observed. ...
Verrij E - - 2008
INTRODUCTION: In 1896, Riva-Rocci introduced the upper arm cuff to measure systolic blood pressure. In 1905, Nicolai Sergeivich Korotkoff added the auscultatory technique, allowing measurement of both systolic and diastolic blood pressure. Both methods have, to our knowledge, never been formally tested against each other. In this study, we want ...
Kelechi Teresa J - - 2008
OBJECTIVE: To examine whether a patient group with chronic venous disorders (CVDs) would show a different response to a pressure provocation test, such as skin perfusion pressure (SPP) of microcirculatory function. DESIGN: A cuff inflation technique was applied to the gaiter area of the lower legs to induce complete occlusion ...
Kim W - - 2008
Lymphedema is swelling, particularly in the subcutaneous tissues, due to accumulation of lymph. Previous imaging techniques have demonstrated associated structural changes and have been used for evaluating the status of soft tissues. However, the reliability of measurements using ultrasonography has not been evaluated and the ultrasonographic method has been unable ...
Moore C - - 2008
The suitability of alternative sites for non-invasive blood pressure (NIBP) measurement was investigated in 100 awake healthy volunteers. The calf and the ankle were chosen for comparison with the arm, and the results analysed subjected to Bland-Altman analysis. Discomfort was graded using a Visual Analogue Scale. There was a poor ...
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